import java.util.*;

public class Group extends Deck {
	
	private HashSet cards;
	private int pileSize;
	
	public Group(int numCards) {
		super(numCards);
		cards = new HashSet();
		pileSize = 0;
	}
	
	public void add(Card c) {
		
	}
	
	public void add(Group g) {
		
	}
	
	public Card remove(int cardID) {
		return null;
	}
	
	public Card[] remove(int[] cardIDs) {
		return null;
	}
	
	
	
}